Source: National Archives, Nixon Presidential Materials, NSC Files, Box 164, Vietnam Country
Files, Vietnam, May–September 1973. Secret; Eyes Only. Sent for
information. Kissinger’s
initials appear at the top of the page and he wrote: “They can’t do
this on their own.”

Source: National Archives, Nixon Presidential Materials, NSC Files, Box 164, Vietnam Country
Files, Vietnam, May–September 1973. Secret; Sensitive. Sent for
information. Kissinger’s
initials appear at the top of the page. According to the attached
correspondence profile, he noted the memorandum on July 11.

Source: Ford
Library, National Security Adviser, Memoranda of Conversations, Box
2, Memcons. Secret; Nodis. The
luncheon meeting was held in the Secretary’s office, Department of
State. Brackets are in the original.

Source: Central Intelligence Agency, NIC Files, Job 79–R01012A, Box 469,
National Intelligence Estimates, Folder 1, NIE 53/14.3–73. Secret. The Central Intelligence Agency
and the intelligence organizations of the Departments of State,
Defense, and Treasury and the National Security Agency participated
in the preparation of this estimate. The Director of Central
Intelligence submitted the estimate with the concurrence of all
members of the USIB except the
FBI representative, who
abstained on the ground that it was outside FBI jurisdiction. For the full text of the estimate,
see National Intelligence Council, Estimative
Products on Vietnam, 1948–1975 (Washington, D.C.: U.S.
Government Printing Office, 2005), pp. 597–617.